Cyber Security Jobs

• London
• Hybrid
• Senior

Engineer and maintain enterprise Windows endpoint, Citrix and application-delivery services across EMEA, covering design, build, testing, release and operational handover. The role involves automation with PowerShell, vulnerability and lifecycle remediation, and root-cause analysis using platform telemetry, working with infrastructure, cyber security and vendor teams.

Microsoft Intune · Windows Autopilot · Windows 365 +7

• London
• Hybrid
• £67,000 pa
• Permanent

Designs and implements security solutions across cloud, on-premises and hybrid environments for a global technology consultancy's client projects. Day-to-day work covers SIEM log ingestion and routing, firewall and network security management, CIS benchmark assessments, and automating security processes with Python, Bash or PowerShell, Terraform and cloud platforms. Involves client-dependent on-call support and requires British passport holders without dual nationality for clearance.

Splunk · Microsoft Sentinel · Cribl +11

• Newbury
• Senior

Monitors and manages network equipment and infrastructure for customer services across EMEA and North America, with a strong focus on firewall and network security administration. Day-to-day work covers Cisco ASA, Firepower and Palo Alto firewalls, VMware vSphere and NetApp storage, plus automation and out-of-hours support on a rota.

Cisco ASA · Cisco Firepower Threat Defense · Palo Alto PA-Series +7

• United Kingdom
• Remote
• Mid-level

Hands-on SRE role focused on CrowdStrike's Commercial Cloud, covering operational ownership of availability, latency, throughput, monitoring, incident response and capacity planning across thousands of bare metal servers and VMs. Involves building automation and tooling in C++, Java, Python or Go, working with monitoring stacks like Prometheus, Grafana and ELK, and joining a global on-call rotation.

CrowdStrike · ELK · Prometheus +15

• United Kingdom
• Hybrid
• £535 – £565 pd
• Senior
• Contract · Flexible

Design, build and operate Kubernetes platforms on Amazon EKS within a cloud platform team, covering cluster security, networking, scalability and resilience. Automate provisioning, upgrades and scaling with Terraform, support CI/CD and GitOps pipelines, and implement monitoring and observability tooling. Requires active SC clearance and occasional onsite attendance roughly every two months.

Amazon EKS · Terraform · Docker +7

• London
• On-site
• Lead
• Permanent

Manage and improve a large-scale AWS and Kubernetes infrastructure powering an ML-based ID verification platform. Automate deployments, harden security with the security team, and provide tooling and guidance to product engineers to boost scalability and reliability. Works in an Agile DevOps team using Terraform, Helm, Docker, GitLab CI and Python.

AWS · Kubernetes · Terraform +7

• London
• Senior
• Permanent

Hands-on security advisory role protecting pre-release film and series content across the production lifecycle, from editorial setup and Aspera transfers to cloud storage and on-set networking. Also maintains AWS infrastructure, builds Python automation for access governance and audit reporting, and researches emerging threats such as forensic watermarking and generative AI misuse.

AWS · Aspera · Python

• London
• On-site
• Senior
• Permanent

Builds AI/ML-driven security automation systems that detect, analyse and respond to threats at Amazon scale, integrating automated detection into the company's security infrastructure. Works alongside security engineers and scientists on proactive, offensive and defensive tooling, researching and prototyping new approaches. Distinct for its focus on autonomous security across one of the world's largest tech ecosystems.

AWS

• Cambridge
• Hybrid · 2 days in office
• Senior

Works within Cambridge R&D teams on high-impact projects spanning rapid prototyping and structured platform development, providing expert technical direction and mentoring engineers across languages such as Python, JavaScript, Rust and C++. The role advances a unique methodology for defending against unknown cyber-attacks, using Docker, cloud environments and CI/CD pipelines, and involves engaging with executive leadership on technical strategy.

Docker · Git · Cloud Computing

• London
• Hybrid · 2 days in office
• Senior

Joins R&D teams to build and enhance cybersecurity products, providing technical direction across rapid prototyping and structured platform development. Involves advancing malware-defence methodology, mentoring engineers in Python, JavaScript, Rust and C++, and working with Docker, cloud environments and CI/CD pipelines. Hybrid role with two days a week in the Cambridge office.

Docker · Git · Cloud Computing

• Paris, France
• Remote
• Mid-level

Owns the end-to-end migration of enterprise customers from legacy security platforms to Cortex, executing data cutovers, policy mappings, API setups and log ingestion validations. Runs practitioner-focused Day in the Life workshops and Value Realization sessions with customer leadership, using dashboards to demonstrate ROI and secure project sign-off.

Palo Alto Networks Cortex XDR · Cortex XSIAM · Prisma Cloud +2

• Berlin, Germany
• Remote
• Mid-level

Owns the end-to-end migration of enterprise customers from legacy security platforms to modern Cortex, Prisma Cloud or Strata deployments within a high-velocity sprint model. Executes data cutovers, policy mappings, API and log ingestion work, and runs Day-in-the-Life workshops and value realization sessions with customer security leadership.

Cortex XDR · Cortex XSIAM · Prisma Cloud +2

• Coventry
• Hybrid · 3 days in office
• £455 pm
• Senior
• Contract · Part time

Designs, implements and maintains enterprise network security across on-prem, cloud and hybrid environments, leading Zero Trust and segmentation initiatives. Hands-on with enterprise firewalls, Azure/AWS network security, VPNs and secure remote access, while collaborating with SOC teams on detection and response. Contract role with three days per week on-site in Coventry.

Palo Alto · Check Point · Cisco Firepower +7

• Solihull
• On-site
• £32,000 – £38,400 pa
• Mid-level
• Permanent · Shift work

Join a brand-new 24/7 support team providing advanced diagnostics and resolution of network incidents across enterprise environments. You will troubleshoot routing, switching, firewalls, wireless and connectivity issues, manage escalations with vendors, and handle major incident response on a 4 on/4 off shift pattern.

Cisco · Meraki · Extreme +7

• Stevenage
• On-site
• £67 – £74 ph
• Senior
• Contract

Operational support, administration and configuration management across Infrastructure and Workplace Windows environments for a defence client, including patching, change management and asset/inventory auditing. Acts as Tier 2/Tier 3 escalation for Windows incidents, performing incident response, root-cause analysis and remediation within highly restricted, fully on-site environments.

Windows Server · Windows OS · Active Directory